OPA2835 VFB Amplifier

Texas Instruments' dual, ultra-low power, rail to rail out, negative rail in, VFB amplifier

Image of Texas Instruments' OPA2835 VFB AmplifierFabricated using the industry-leading BiCom-3x (SiGe complimentary bipolar) process, Texas Instruments' OPA835 and OPA2835 are single and dual ultra-low power, rail-to-rail output, negative rail input, voltage-feedback operational amplifiers designed to operate over a power supply range of 2.5 V to 5.5 V Single Supply and ±1.25 V to ±2.75 V dual supply. Consuming only 250 µA per channel and a unity gain bandwidth of 56 MHz, these amplifiers set an industry leading power-to-performance ratio for rail-to-rail amplifiers. For battery powered portable applications where power is of key importance, the OPA835's and OPA2835's low power consumption and high frequency performance offers designers performance versus power not attainable in other devices. 

Features Applications
  • Ultra-low power
    • Supply voltage: 2.5 V to 5.5 V
    • Quiescent current: 250 µA (typ)
    • Power down mode: 0.5 µA (typ)
  • Bandwidth: 56 MHz
  • Slew rate: 160 V/µs
  • Rise time: 10 ns (2 VSTEP)
  • Settling time: 45 ns (2 VSTEP
  • Low power signal conditioning
  • Audio ADC input buffer
  • Low power SAR
  • ΔΣ ADC driver
  • Portable systems
  • Low power systems
  • High density systems
  • Ultrasonic flow meter


ImageManufacturer Part NumberDescriptionAmplifier TypeNumber of CircuitsAvailable Quantity
IC OPAMP VFB 31MHZ RRO SOT23-6OPA835IDBVTIC OPAMP VFB 31MHZ RRO SOT23-6Voltage Feedback11514 - Immediate
10000 - Factory Stock
OPA835IDBVT product page link
IC OPAMP VFB 31MHZ RRO 10QFNOPA2835IRUNTIC OPAMP VFB 31MHZ RRO 10QFNVoltage Feedback21172 - Immediate
10000 - Factory Stock
OPA2835IRUNT product page link

Evaluation Module

ImageManufacturer Part NumberDescriptionChannels per ICAmplifier TypeOutput TypeAvailable Quantity
EVAL MODULE FOR OPA2835OPA2835IDGSEVMEVAL MODULE FOR OPA28352 - DualVoltage FeedbackRail-to-Rail1 - Immediate
104 - Factory Stock
OPA2835IDGSEVM product page link
Published: 2013-07-02